CVE-2021-29239 describes a critical vulnerability in CODESYS Development System 3 prior to version 3.5.17.0, where the software fails to validate embedded documents or files within libraries before execution, potentially leading to arbitrary code execution. With a CVSS score of 7.8 (HIGH), this vulnerability has a local attack vector, low attack complexity, and can result in high impact to confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered minimal community discussion, with only one mention indicating awareness within the cybersecurity community.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 3.0, < 3.5.17.0CPE matchmatch criteria | cpe:2.3:a:codesys:development_system:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.